Porous Fine Bubble Generation Without Pump Pressurization

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Solution Overview

Problem

Existing methods for generating fine bubbles are complex, require pressurization by pumps, and are not suitable for miniaturization or low-energy operation.

Innovation Solution

A method utilizing a porous body with continuous pores to generate fine bubbles through the Venturi effect, eliminating the need for pump pressurization, allowing for a simple and quiet operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If pump pressurization is used to generate fine bubbles, then bubble generation efficiency is improved, but device complexity and energy consumption increase

Engineering Contradiction:
Improvebubble generation efficiencyVSAvoiddevice complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The invention extracts and eliminates the pump component from the fine bubble generation system. By using a porous body with specific pore diameter (1-100 μm) and porosity (30-80%), the system generates fine bubbles through passive flow without requiring active pressurization equipment, thus simplifying device structure while maintaining bubble generation capability

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The porous body structure enables self-service bubble generation through its inherent physical properties. The specific pore diameter and porosity range allow liquid to pass through and generate fine bubbles automatically based on flow rate and pressure differential, without external control or additional energy input beyond what is needed to drive the flow

Inventive Principle:
Principle #25Self-service

2Productivity

If pump pressurization is used to generate fine bubbles, then bubble generation efficiency is improved, but energy consumption increases

Engineering Contradiction:
Improvebubble generation efficiencyVSAvoidenergy consumption
Core Design Contradiction:
ProductivityVSUse of energy by moving object

Solution Approach 1:

The invention removes the pump component that consumes electrical energy, replacing it with a passive porous body structure. The system utilizes the natural flow of liquid through the porous medium to generate fine bubbles, eliminating the need for continuous energy input while maintaining productivity

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The porous body structure enables self-service bubble generation through its inherent physical properties. The specific pore diameter (1-100 μm) and porosity (30-80%) allow the system to generate fine bubbles automatically based on flow rate and pressure differential, without external control or additional energy input beyond what is needed to drive the flow

Inventive Principle:
Principle #25Self-service

3Productivity

If conventional bubble generation methods are used, then fine bubbles can be produced, but the structure is complex and not suitable for miniaturization

Engineering Contradiction:
Improvefine bubble productionVSAvoidstructure complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The invention employs a porous body with specifically controlled pore diameter (1-100 μm) and porosity (30-80%) as the core component. This porous structure directly generates fine bubbles as liquid passes through, eliminating the need for complex mechanical systems while enabling miniaturization and simplifying the overall device structure

Inventive Principle:
Principle #31Porous materials

Solution Approach 2:

The invention extracts and eliminates the pump component from the fine bubble generation system. By using a porous body with specific pore diameter (1-100 μm) and porosity (30-80%), the system generates fine bubbles through passive flow without requiring active pressurization equipment, thus simplifying device structure while maintaining bubble generation capability

Inventive Principle:
Principle #2Taking out (Extraction)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The method enables the generation of fine bubbles in a compact, low-energy device suitable for home use, producing ultrafine bubbles without noise and at low operating costs.

Implementation Method 1

A method utilizing a porous body with continuous pores to generate fine bubbles through the Venturi effect

Methodology Applied
Scientific EffectVenturi effect: Venturi Effect

Data Source

PatentEP3851185B1Method for generating fine bubbles
Publication Date: 2026.02.11 CATALER CORP
  • EP3851185B1 patent drawingFigure 1~2
  • EP3851185B1 patent drawingFigure 3

AI summary

The purpose of the present invention is provide a device for producing fine bubbles that has a simple configuration and that is capable of generating fine bubbles. This fine bubble generation device (100) comprises: a porous body (10) having continuous pores; a liquid supply section (1) that supplies a liquid to the porous body (10) and causes the liquid to circulate through the continuous pores; and a liquid discharge section (2) for discharging liquid that has circulated through the continuous pores.